论文部分内容阅读
运用傅立叶变换红外光谱技术对来自安徽女山新生代碧玄岩中的 6个和江苏盘石山新生代玄武岩中的 3个名义上“干”橄榄岩包体中的矿物进行了观察。结果显示 :单斜辉石和斜方辉石普遍含有微量的结构水 ,以 OH- 的形式赋存 ;除 1个女山包体外 ,其余的橄榄石均未探测到结构水 ;女山 1个石榴石橄榄岩中的石榴石未能探测到结构水。单斜辉石中结构水含量 >斜方辉石 >>橄榄石 (石榴石 )。结合文献中的资料来看 ,岩石圈地幔中水的分布可能既具有大尺度不均一性 ,又具有小尺度不均一性 ,可能并不具有明显的垂向分带。
Six minerals from the Xishan rock of Nian Shan Cenozoic in Anhui Province and three nominally “dry” peridotite inclusions from the Panshan Cenozoic basalts in Jiangsu Province were observed by Fourier Transform Infrared Spectroscopy. The results show that clinopyroxene and orthopyroxenes generally contain trace amounts of structural water and occur in the form of OH-. No structural water is detected in the remaining olivine, Garnet in peridotite failed to detect structural water. Cristobalite Structure Water content> orthopyroxene >> olivine (garnet). According to the data in the literature, the distribution of water in the lithospheric mantle may not only have large-scale inhomogeneity but also small-scale inhomogeneity, which may not have obvious vertical zonation.